1 4BD-11101-02-00 CYLINDER HEAD ASSY . . . . . . 1
2 93440-10085-00 . CIRCLIP . . . . . . . . . . . . . . . . . 2
3 90153-06029-00 . .SCREW, HEXAGON . . . . . . . 1
4 90430-06014-00 . GASKET . . . . . . . . . . . . . . . . 1
5 5H0-11133-11-00 . GUIDE, INTAKE VALVE . . . . . 2
6 15A-11162-00-00 ABSORBER 2 . . . . . . . . . . . . . 1
7 3GH-11181-00-00 GASKET, CYLINDER HEAD 1 . 1
8 99530-14016-00 PIN, DOWEL . . . . . . . . . . . . . . 2
9 93612-16254-00 PIN, DOWEL . . . . . . . . . . . . . . 1
10 90430-12186-00 GASKET . . . . . . . . . . . . . . . . . 1
11 90105-08195-00 BOLT, FLANGE . . . . . . . . . . . . 4
12 90201-08609-00 WASHER, PLATE . . . . . . . . . . . 4
13 91317-08045-00 BOLT . . . . . . . . . . . . . . . . . . . . 2
14 90201-087G0-00 WASHER, PLATE . . . . . . . . . . . 2
15 4BD-11160-00-00 BREATHER ASSY . . . . . . . . . . 1
16 4KB-11165-00-00 PLATE, BREATHER . . . . . . . . . 1
17 4XE-11166-00-00 PIPE, BREATHER 1 . . . . . . . . . 1
18 90467-14015-00 CLIP, SCISSOR . . . . . . . . . . . . 1
19 93210-92448-00 O-RING . . . . . . . . . . . . . . . . . . 1
20 92017-06012-00 BOLT, SCREW HEAD . . . . . . . 2
21 93211-05471-00 O-RING . . . . . . . . . . . . . . . . . . 1
22 98507-06020-00 .SCREW, PAN HEAD . . . . . . . . 2
23 3GC-11186-00-00 COVER, CYLINDER HEAD
SIDE 2 . . . . . . . . . . . . . . . . . . . 1
24 3GC-11187-00-00 COVER, CYLINDER HEAD
SIDE 3 . . . . . . . . . . . . . . . . . . . 1
25 93210-57634-00 O-RING . . . . . . . . . . . . . . . . . . 2
26 91317-06018-00 BOLT . . . . . . . . . . . . . . . . . . . . 5
27 5H0-1111F-00-00 PLATE . . . . . . . . . . . . . . . . . . . 1
CONTINUED ON NEXT FRAME ➤
CYLINDER HEAD
Ref. Part
No. Number Description Qty Remarks
A5
YFM250XL_XLC
28 97007-06012-00 .BOLT . . . . . . . . . . . . . . . . . . . 2
29 90215-06184-00 WASHER, LOCK . . . . . . . . . . . 1
30 NGK-DR7EA-00-00 PLUG, SPARK (NGK DR7EA) . 1 WITH RESISTER
CYLINDER HEAD
Ref. Part
No. Number Description Qty Remarks
A6
YFM250XL_XLC
1 4BD-11310-01-00 CYLINDER . . . . . . . . . . . . . . . . 1
2 93210-72529-00 O-RING . . . . . . . . . . . . . . . . . . 1
3 4BD-11351-00-00 GASKET, CYLINDER . . . . . . . . 1
4 93210-13361-00 .O-RING . . . . . . . . . . . . . . . . . . 1
5 99530-14016-00 PIN, DOWEL . . . . . . . . . . . . . . 2
6 91317-06025-00 BOLT, SOCKET HEAD . . . . . . . 2
CYLINDER
Ref. Part
No. Number Description Qty Remarks
A7
YFM250XL_XLC
1 29U-11400-01-00 CRANKSHAFT ASSY . . . . . . . . 1
2 29U-W1141-00-00 . CRANK 1 . . . . . . . . . . . . . . . . 1
3 29U-11422-01-00 . CRANK 2 . . . . . . . . . . . . . . . . 1
4 90331-09041-00 . . PLUG . . . . . . . . . . . . . . . . . . 1
5 5H0-11681-00-00 . PIN, CRANK 1 . . . . . . . . . . . . 1
6 93310-530J3-00 . BEARING . . . . . . . . . . . . . . . . 1
7 29U-11651-00-00 . ROD, CONNECTING . . . . . . . . 1
8 93306-30611-00 BEARING . . . . . . . . . . . . . . . . . 1
9 90280-03017-00 KEY, WOODRUFF . . . . . . . . . . 1
10 4BD-11631-00-Y0 PISTON (STD) . . . . . . . . . . . . . 1
4BD-11636-00-00 PISTON (0.50MM O/S) . . . . . . . 1 AP
4BD-11638-00-00 PISTON (1.00MM O/S) . . . . . . . 1 AP
11 4BD-11610-00-00 PISTON RING SET (STD) . . . . . 1
4BD-11610-20-00 PISTON RING SET
(0.50MM O/S) . . . . . . . . . . . . . . 1 AP
4BD-11610-40-00 PISTON RING SET
(1.00MM O/S) . . . . . . . . . . . . . . 1 AP
12 29U-11633-00-00 PIN, PISTON . . . . . . . . . . . . . . 1
13 93450-17044-00 CIRCLIP . . . . . . . . . . . . . . . . . . 2
14 2HT-11536-00-00 GEAR, DRIVE . . . . . . . . . . . . . 1
15 5H0-11531-00-00 GEAR, BALANCE WEIGHT
(38T) . . . . . . . . . . . . . . . . . . . . 1
16 4BD-11454-00-00 WEIGHT 1 . . . . . . . . . . . . . . . . 1
17 93306-30427-00 BEARING . . . . . . . . . . . . . . . . . 2
18 90282-05013-00 KEY, STRAIGHT . . . . . . . . . . . 1
19 90215-14205-00 WASHER, LOCK . . . . . . . . . . . 1
20 90170-14284-00 NUT . . . . . . . . . . . . . . . . . . . . . 1
21 90280-05048-00 KEY, WOODRUFF . . . . . . . . . . 1
22 90201-107F8-00 WASHER, PLATE . . . . . . . . . . . 1
23 92907-10100-00 WASHER, SPRING . . . . . . . . . . 1
CONTINUED ON NEXT FRAME ➤
CRANKSHAFT_PISTON
Ref. Part
No. Number Description Qty Remarks
A8
YFM250XL_XLC
24 90101-10568-00 BOLT . . . . . . . . . . . . . . . . . . . . 1
25 93210-16290-00 O-RING . . . . . . . . . . . . . . . . . . 1
26 99009-26400-00 CIRCLIP . . . . . . . . . . . . . . . . . . 1
CRANKSHAFT_PISTON
Ref. Part
No. Number Description Qty Remarks
A9
YFM250XL_XLC
1 5H0-12111-01-00 VALVE, INTAKE . . . . . . . . . . . . 1
2 5H0-12121-01-00 VALVE, EXHAUST . . . . . . . . . . 1
3 4G0-12116-01-00 SEAT, VALVE SPRING . . . . . . . 2
4 4G0-12113-01-00 SPRING, VALVE INNER . . . . . . 2 YELLOW
5 4G0-12114-01-00 SPRING, VALVE OUTER . . . . . 2 YELLOW
6 5H0-12119-00-00 SEAL, VALVE STEM . . . . . . . . 2
7 4G0-12117-00-00 RETAINER, VALVE SPRING . . 2
8 4G0-12118-00-00 COTTER, VALVE . . . . . . . . . . . 4
9 29U-12151-00-00 ARM, VALVE ROCKER . . . . . . 2
10 5H0-12156-00-00 SHAFT, ROCKER 2 . . . . . . . . . 1
11 5H0-12146-00-00 SHAFT, ROCKER . . . . . . . . . . . 1
12 93210-09165-00 O-RING . . . . . . . . . . . . . . . . . . 1
13 2NX-12159-00-00 SCREW, VALVE ADJUSTING . . 2
14 90170-06128-00 NUT . . . . . . . . . . . . . . . . . . . . . 2
VALVE
Ref. Part
No. Number Description Qty Remarks
A10
YFM250XL_XLC
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